Sylvania



PATBNTED JAN. 26, 1904.

0. D. MARS H.

MOLDING MACHINE. APPLICATION FILED AUG. 29, 1903.

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PATENTED J-AN. 26, 1904.

C. D. MARSH. MULDING MACHINE. APPLICATION FILED we. 29, 1903,

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UNITED STATES iatented January 26; 1904;

PATENT OFFICE.

CALVIN D. MARSH, OF WILLIAMSPORT, PENNSYLVANIA, ASSIGNOR- TO HERMANCE MACHINE COMPANY, OF WILLIAMSPORT, PENN:

SYLVANIA.

. MOLDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 750,552, dated J anuarv 26, 1904. Application filed August 29, 1903- SerialNo. 171,281. (No model.)

To all whom it may concern:

Be it known that I, CALVIN D. MARSH, a citizen of the United States, residing at Williamsport, in the county of Lycoming and State of Pennsylvania, have invented a newand useful Molding-Machine, of which the following is a specification.

The invention relates to improvements in molding-machines.

The object of the present invention is to improve the construction of molding-machines, more especially the means for adjusting the head stocks or blocks which carry the arbors of the cutter-heads and to enable the adjustment of the head stocks or blocks to beeither fast or slow after the arbors have been set at the desired angle or inclination.

A further object of the invention is to en: able the gearing of the inner head-stocks to be arranged within the frame of the machine and to stiffen the screws for adjusting the head stocks or blocks, and thereby prevent the said screws from springing or bending laterally.

With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended, it being understood that various changes in the form, proportion, size, and minor details of construction within the scope of the claim may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a transverse sectional view of a portion of an outside molding-machine provided with head-stock-adjusting means constructed in accordance with this invention. Fig. 2 is a sectional view taken practically on the line 2 2 of Fig. 1. Fig. 3 is a side view of a portion of the molding-machine, illustrating the arrangement of the outer ends of the adjusting-screws for moving I the head stocks or blocks inward and outward.

Fig. 4 is a sectional view illustrating the manner of adjusting the head stocks or blocks of the outer arbor.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

1 designates the frame of the machine, which may be of any desired size or shape, and 2 and 3 designate arbors which carry cutter-heads A and 5. Each of the arbors is mounted in suitable bearings 6 of head stocks or blocks, which are movable transversely of the machine and which are also pivotally mounted, as hereinafter fully described, to enable the arbors to be arranged either vertically or at an inclination.

The bearings are designed to be constructed similar to those shown in my prior patent, No. 513,192, in order to permit the arbors to .be arranged either vertically or at an inclination.

Extending transversely of the machine from the in or off side thereof to the partition 7 are upper and lower guides or Ways 8, consisting of bars provided with longitudinal slots or openings 9 for the reception of the pivots 10 of head stocks or blocks 11, as clearly illustrated in Fig. 2 of the drawings. The ways or guides are oppositely beveled to form tapered or wedge-shaped portions 12, and the head stocks or blocks are provided with clamping members or sections 13, having side flanges 14:. The side flanges 14 are spaced apart to receive the guides or ways, and the clamping members or sections are oppositely beveled between the side flanges to form converging or angularly-disposed faces 15 for engagement with the wedge-shaped portions of the guides or ways. The guides or ways are also outer ends with heads and having inner threaded portions which engage threaded openings or sockets 16 of the main or body portions of the head stocks or blocks. The main or body portions of the head stocks or blocks carry the bearings and are adapted to partially rotate on the pivots 10. The outer portions of the pivots lO receive clamping-plates 17, which are engaged by the heads of' the said pivots, and the clamping-plates and the clamping members or sections are spaced apart slightly, as illustrated in Fig. 2 of the drawings, to allow for any wear of the parts and to prevent them from contacting with each other and interfering with their engagement with the guides or ways. When it is desired to adjust the head stocks or blocks, the screws which constitute the pivots 10 are loosened to permit the head stocks or blocks to slide on the ways or guides 8 and also to have the necessary pivotal movement. After the head stocks or blocks have been adjusted the screws are tightened, and the wedging action of the clamp ing members and the guides or Ways firmly lock the parts against vertical movement and take up any lost motion.

The slidable clamping members of the head stocks or blocks are provided with threaded apertures for the reception of threaded portions 18 of transverse shafts 19, which are journaled in suitable bearings of the frame of the machine and which constitute adjustingscrews for sliding the head stocks or-blocks longitudinally of the ways 8. The threaded portions 18 of the shafts are located adjacent to the ways or guides 8 and extend from the partition 7 toward the in or off side of the machine, as clearly shown in Fig. 1, and the other ends of the shafts 19 project from the outer side of the frame and terminate in angular portions, which are adapted to receive a crank for rotating the adjusting-screws. The shafts 19 are provided within the frame 1 adjacent to the partition 7 with pinions 20, which are adapted to mesh with the gear 21 of an intermediate counter-shaft 22, and the latter is capable of a limited longitudinal reciprocation to carry the gear 21 into and out of mesh with the pinions 20, whereby the shafts 19 are coupled and uncoupled. When the shafts are uncoupled, as illustrated in Fig. 1 of the drawings, either may be rotated independently of the other for adjusting its head stock or block, and the head stocks or blocks may be brought into the same vertical plane to arrange the arbor vertically, or they may be located at different points to set the arbor at an angle or inclination. After the head stocks or blocks have been adjusted to the proper relative position the shafts 19 are coupled by carrying the gear 21 into mesh with the pinions 20. The head stocks or blocks may then be simultaneously adjusted without changing the angle or inclination of the arbor, and this adjustment may be effected by a rapid or slow movement. When either of the shafts 19 is rotated, a comparatively slow movement will be imparted to the head stocks or blocks, owing to the difference in size between the pinions and the intermediate gear 21, and when a rapid movement of the head stocks or blocks to actuate the pinions 20.

is desired the intermediate Counter-shaft 22 is rotated, causing the intermediate gear 21 These gears may be made of any desired diameters to secure the desired movements of the head stocks or blocks and the movement of the head stocks or blocks may also be varied by varying the pitch of the threads. By arranging the gearing adjacent to the partition 7 and journaling the shafts at that point, the adjusting-screws are prevented from springing or moving laterally, and the shafts 19 are thereby stiffened.

The shaft 22 is provided at its outer portion with an exterior-grooved collar or sleeve 23, which is adapted to be engaged by a pivoted latch 24, whereby the shaft is held against longitudinal movement when the intermediate gear 21 is in mesh with the pinions 20. The pivoted catch or latch may also be dropped back of the grooved collar or sleeve for holding the intermediate gear 21 positively out of mesh with the pinions. The shaft 22 and its gear are capable of ready adjustment, and the other shafts 19 may be rapidly manipulated, so that the cutter-head may be quickly brought into the desired position and the positive clamping action of the beveled guides or ways and the grooved clamping members rigidly hold the head stocks or blocks in position and enable the side heads to do as smooth work as the top head of a molding-machine. The other arbor, 3, is mounted in the same manner as the arbor 2, before described, being supported in bearings 25 of head stocks or blocks 26, and the latter are arranged to slide on transverse guides or ways 27. The guides or ways 27 which are beveled, as shown in Fig. 4, are also provided with longitudinal slots or openings to receive the pivots of the head stocks or blocks 26. stocks or blocks 26 are adjusted by screws 28, having pinions 29 and provided with threaded portions 30, the pinions being located within a casing 31. The casing 31, which is mounted on the exterior of the frame of the machine, also receives an intermediate gear 32, which is keyed or otherwise fixed to a shaft 33 in the same manner as the intermediate gear of the shaft 22, whereby the shaft 33 is adapted to be used for operating the gearing. The shafts 29 and 33 also terminate at their outer ends in angular portions, which are adapted to receive a crank. The intermediate shaft 33 is provided with a grooved collar or sleeve 34:, adapted to be engaged by a pivoted latch 35 for holding the intermediate gear 32 in mesh with the pinions 29.

When the crank is placed on any one of the adjusting-screws 19 and 28, the feeding movement will be confined to the number of threads cut on the threaded portion of such shaft or screw; but by the employment of the gearing with the large intermediate gears 21 and 32 the speed of the feeding movement may be The head IIO doubled by changing the crank from the adjusting screws or shafts to the intermediate shafts.

By reason of the employment of the intermediate shaft in conjunction with the drivingshafts working at an increased speed said shafts must be supported at two separated points in the frame of the machine and have bearings at each point.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a machine of the class described, the combination with a frame,of transverse shafts having a bearing at two separated points in the frame, one end of each shaft beingthreaded,

and the other end being extended from the machine and constructed to receive an operating means, pinions provided on each shaft within the frame, an intermediate shaft journaled on the frame at two separated points, head-stocks slidable on the frame and operated by the threaded portions of the transverse shafts, and a pinion mounted on the intermediate shaft within the frame and of greater size than the pinions of the transverse shafts, the end of the intermediate shaft being extended from the machine and constructed to receive an operating means, and said shaft being longitudinally movable to carry its pinions into or out of engagement with the pinions of the transverse shafts, whereby the operating means may be applied either to the intermediate shaft to impart increased speed to the transverse shafts, or to any one of the transverse shafts to rotate the latter at a reduced speed when the pinions are in mesh, or to any one of said transverse shafts to move the same independently of the intermediate shaft when the pinions are not in mesh, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses. CALVIN D. MARSH. Witnesses:

HUGH GILMORE, ALBERT S. HERMANCE. 

